X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=cpu%2FCyclone%2FMain.cpp;h=3bb129dcf4b5e1dddf9de09760ffb71658d182dc;hb=00bd648e6308fbcfe759a56dc24c11435d358ec4;hp=aca7f4f70c5d4171ee8047b06a4e5aacf54a493f;hpb=7336a99a49268970e0df89d15210b98dd7798f1e;p=picodrive.git

diff --git a/cpu/Cyclone/Main.cpp b/cpu/Cyclone/Main.cpp
index aca7f4f..3bb129d 100644
--- a/cpu/Cyclone/Main.cpp
+++ b/cpu/Cyclone/Main.cpp
@@ -86,11 +86,10 @@ static void PrintException(int ints)
 void CheckInterrupt(int op)
 {
   ot(";@ CheckInterrupt:\n");
-  ot("  ldr r0,[r7,#0x44]\n"); // same as  ldrb r0,[r7,#0x47]
-  ot("  movs r0,r0,lsr #24 ;@ Get IRQ level (loading word is faster)\n");
+  ot("  ldr r1,[r7,#0x44] ;@ Get SR high T_S__III and irq level\n");
+  ot("  movs r0,r1,lsr #24 ;@ Get IRQ level\n"); // same as  ldrb r0,[r7,#0x47]
   ot("  beq NoInts%x\n",op);
   ot("  cmp r0,#6 ;@ irq>6 ?\n");
-  ot("  ldrleb r1,[r7,#0x44] ;@ Get SR high: T_S__III\n");
   ot("  andle r1,r1,#7 ;@ Get interrupt mask\n");
   ot("  cmple r0,r1 ;@ irq<=6: Is irq<=mask ?\n");
   ot("  blgt CycloneDoInterrupt\n");
@@ -113,15 +112,14 @@ static void PrintFramework()
   ot("  ldr r5,[r7,#0x5c]  ;@ r5 = Cycles\n");
   ot("  ldr r4,[r7,#0x40]  ;@ r4 = Current PC + Memory Base\n");
   ot("                     ;@ r8 = Current Opcode\n");
-  ot("  ldr r0,[r7,#0x44]\n");
+  ot("  ldr r1,[r7,#0x44]  ;@ Get SR high T_S__III and irq level\n");
   ot("  mov r9,r9,lsl #28  ;@ r9 = Flags 0xf0000000, cpsr format\n");
   ot("                     ;@ r10 = Source value / Memory Base\n");
   ot("\n");
   ot(";@ CheckInterrupt:\n");
-  ot("  movs r0,r0,lsr #24 ;@ Get IRQ level\n"); // same as  ldrb r0,[r7,#0x47]
+  ot("  movs r0,r1,lsr #24 ;@ Get IRQ level\n"); // same as  ldrb r0,[r7,#0x47]
   ot("  beq NoInts0\n");
   ot("  cmp r0,#6 ;@ irq>6 ?\n");
-  ot("  ldrleb r1,[r7,#0x44] ;@ Get SR high: T_S__III\n");
   ot("  andle r1,r1,#7 ;@ Get interrupt mask\n");
   ot("  cmple r0,r1 ;@ irq<=6: Is irq<=mask ?\n");
   ot("  blgt CycloneDoInterrupt\n");